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我想使用Oracle使用dotConnect for Oracle(v 9.4)。由于aspnet核心2.0完全支持引用旧的.net框架,我试图连接到数据库使用常规的.net程序集(即程序集包含我的DbContext在目标。NET 4.6.1,并已在我的聊天室网站核心2项目)。aspnetcore 2.0与EF6和dotConnect为oracle
我对着跌破发行
"System.TypeInitializationException: 'The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception.'
Inner Exception: FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified."
这里是我CodeConfig
类
public class CodeConfig : DbConfiguration
{
public CodeConfig()
{
SetProviderServices("Devart.Data.Oracle", Devart.Data.Oracle.Entity.OracleEntityProviderServices.Instance);
SetProviderFactory("Devart.Data.Oracle", new Devart.Data.Oracle.OracleProviderFactory());
}
}
我的DbContext类
[DbConfigurationType(typeof(CodeConfig))]
public partial class MyEntities : DataContext, IMyStoredProcedures
{
public MyEntities(string nameOrConnectionString) : base(nameOrConnectionString)
{
Configure();
}
private void Configure()
{
this.Configuration.AutoDetectChangesEnabled = true;
this.Configuration.LazyLoadingEnabled = true;
this.Configuration.ProxyCreationEnabled = true;
this.Configuration.ValidateOnSaveEnabled = true;
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
throw new UnintentionalCodeFirstException();
}
}
...
}
抛出异常时
base(nameOrConnectionString)
被执行。
在启动DI
var dbContext = new MyEntities(Configuration["Data:DefaultConnection:ConnectionString"]);
services.AddScoped<IDataContextAsync>(provider => dbContext);
services.AddScoped<IMyStoredProcedures>(provider => dbContext);
Appsettings.json
"Data": {
"DefaultConnection": {
"ConnectionString": "metadata=res://Org.MyApp.Entities/MyModel.csdl|res://Org.MyApp.Entities/MyModel.ssdl|res://Org.MyApp.Entities/MyModel.msl;provider=Devart.Data.Oracle;provider connection string="User Id=UID;Password=****;Server=Server;Persist Security Info=True""
}
}
以下链接被用作参考。
aspnet core 1.x with EF6(基于1.x的,但有一些有用的信息)